CAJ | 학술논문

提出一种多用户MIMO下行传输策略,解决了无可用信道信息场景中的MIMO广播信道通信问题.应用该策略,基站选择一组用户同时通信,每个用户对应一根基站发射天线.移动用户利用独立分量分析的算法从接收混合信号中分离出属于自己的信号分量.仿真结果表明,在无信道信息的情况下,采用该策略能够成功实现下行广播通信.
제출일충다용호MIMO하행전수책략,해결료무가용신도신식장경중적MIMO엄파신도통신문제.응용해책략,기참선택일조용호동시통신,매개용호대응일근기참발사천선.이동용호이용독립분량분석적산법종접수혼합신호중분리출속우자기적신호분량.방진결과표명,재무신도신식적정황하,채용해책략능구성공실현하행엄파통신.
We introduce a multiuser MIMO (MU-MIMO) downlink transmission strategy to solve the transmission problem for MIMO broadcast channels without available channel state information (CSI).By use of the scheme,base station (BS) selects a set of mobile stations (MS) and communicate simultaneously.Each transmit antenna at BS corresponds to an MS in the active user subset.The MS applies independent component analysis (ICA) algorithm to demix different components from the received mixing signals and identifies its own.Simulation results show that by applying the proposed strategy,MU-MIMO downlink transmission can be implemented successfully without CSI.